I If the Coefficient of Correlation Is 0

Multiple Choice

i. If the coefficient of correlation is 0.70, what is the coefficient of determination?
ii. If the value of r is -0.88, what does this indicate about the dependent variable as the independent
Variable increases?
iii. If the correlation between sales and advertising is -0.7, what percent of the variation in sales can
Be attributed to advertising?

A) 0.49; it decreases; 49%0.49.
B) 0.49; it decreases; 0.7.
C) 0.49; it increases; 0.49.
D) 0.8367; it decreases; 0.7.
E) 0.8367; it increases; 0.8367.